Assessing mental well-being in a Sinhala speaking Sri Lankan population: validation of the WHO-5 well-being index

Abstract Purpose The WHO-5 well-being index is a widely used, short rating scale that measures subjective well-being. We translated the WHO-5 index into Sinhala and tested its psychometric properties including measurement invariance among diverse groups in a community sample in Sri Lanka. Methods Th...

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Main Authors: B. P. R. Perera, R. Jayasuriya, A. Caldera, A. R. Wickremasinghe
Format: Article
Language:English
Published: BMC 2020-09-01
Series:Health and Quality of Life Outcomes
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12955-020-01532-8
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author B. P. R. Perera
R. Jayasuriya
A. Caldera
A. R. Wickremasinghe
author_facet B. P. R. Perera
R. Jayasuriya
A. Caldera
A. R. Wickremasinghe
author_sort B. P. R. Perera
collection DOAJ
description Abstract Purpose The WHO-5 well-being index is a widely used, short rating scale that measures subjective well-being. We translated the WHO-5 index into Sinhala and tested its psychometric properties including measurement invariance among diverse groups in a community sample in Sri Lanka. Methods The sample of 267 persons aged between 16 and 75 years was recruited from a semi-urban area. 219 completed a paper-based questionnaire and 48 responded to an online survey. Construct validity was tested for factorial validity (Confirmatory Factor Analysis -CFA), convergent validity and known group validity. Composite reliability for congeneric measures and test-retest reliability were also tested. Multi-group CFA (MG-CFA) was used to test measurement invariance. Results The translated Sinhala version demonstrated good content and face validity. Internal consistency reliability of the five items had a Cronbach’s alpha of 0.85 and test-retest reliability over 2 weeks was satisfactory (Pearson r = 0.72, p < 0.001, ICC = 0.82). Confirmatory factor analysis supported factorial validity with a χ 5 2 $$ {\chi}_5^2 $$ =4.99 (p = 0.28), a RMSEA of 0.03 (90% C.I. =0.00–0.10), a SRMR of 0.02, a TLI of 0.99 and a CFI of 0.99; factor loadings were between 0.55 and 0.89. Measurement invariance was acceptable for configural, metric and scalar invariance for gender. WHO-5 scores were significantly negatively correlated with the Patient Health Questionnaire (PHQ-9) (Pearson’s r = − 0.45, p < 0.001) scores and the Kessler Psychological Distress Scale (K10) scores (Pearson’s r = − 0.56, p < 0.001). Conclusion The Sinhala translation of WHO-5 well-being index has shown acceptable psychometric properties and can be used for assessing mental well-being in the community in Sri Lanka. Further testing of the measure with larger and diverse (including different ethnic/cultural) groups are indicated to test measurement invariance of the measure.
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spelling doaj.art-043167a378794e15aca542bd9aecc58c2022-12-22T00:48:29ZengBMCHealth and Quality of Life Outcomes1477-75252020-09-011811910.1186/s12955-020-01532-8Assessing mental well-being in a Sinhala speaking Sri Lankan population: validation of the WHO-5 well-being indexB. P. R. Perera0R. Jayasuriya1A. Caldera2A. R. Wickremasinghe3Department of Public Health, Faculty of Medicine, University of KelaniyaSchool of Public Health & Community Medicine, University of New South WalesDepartment of Public Health, Faculty of Medicine, University of KelaniyaDepartment of Public Health, Faculty of Medicine, University of KelaniyaAbstract Purpose The WHO-5 well-being index is a widely used, short rating scale that measures subjective well-being. We translated the WHO-5 index into Sinhala and tested its psychometric properties including measurement invariance among diverse groups in a community sample in Sri Lanka. Methods The sample of 267 persons aged between 16 and 75 years was recruited from a semi-urban area. 219 completed a paper-based questionnaire and 48 responded to an online survey. Construct validity was tested for factorial validity (Confirmatory Factor Analysis -CFA), convergent validity and known group validity. Composite reliability for congeneric measures and test-retest reliability were also tested. Multi-group CFA (MG-CFA) was used to test measurement invariance. Results The translated Sinhala version demonstrated good content and face validity. Internal consistency reliability of the five items had a Cronbach’s alpha of 0.85 and test-retest reliability over 2 weeks was satisfactory (Pearson r = 0.72, p < 0.001, ICC = 0.82). Confirmatory factor analysis supported factorial validity with a χ 5 2 $$ {\chi}_5^2 $$ =4.99 (p = 0.28), a RMSEA of 0.03 (90% C.I. =0.00–0.10), a SRMR of 0.02, a TLI of 0.99 and a CFI of 0.99; factor loadings were between 0.55 and 0.89. Measurement invariance was acceptable for configural, metric and scalar invariance for gender. WHO-5 scores were significantly negatively correlated with the Patient Health Questionnaire (PHQ-9) (Pearson’s r = − 0.45, p < 0.001) scores and the Kessler Psychological Distress Scale (K10) scores (Pearson’s r = − 0.56, p < 0.001). Conclusion The Sinhala translation of WHO-5 well-being index has shown acceptable psychometric properties and can be used for assessing mental well-being in the community in Sri Lanka. Further testing of the measure with larger and diverse (including different ethnic/cultural) groups are indicated to test measurement invariance of the measure.http://link.springer.com/article/10.1186/s12955-020-01532-8WHO-5 Sinhala versionValidationWell-beingSri Lanka
spellingShingle B. P. R. Perera
R. Jayasuriya
A. Caldera
A. R. Wickremasinghe
Assessing mental well-being in a Sinhala speaking Sri Lankan population: validation of the WHO-5 well-being index
Health and Quality of Life Outcomes
WHO-5 Sinhala version
Validation
Well-being
Sri Lanka
title Assessing mental well-being in a Sinhala speaking Sri Lankan population: validation of the WHO-5 well-being index
title_full Assessing mental well-being in a Sinhala speaking Sri Lankan population: validation of the WHO-5 well-being index
title_fullStr Assessing mental well-being in a Sinhala speaking Sri Lankan population: validation of the WHO-5 well-being index
title_full_unstemmed Assessing mental well-being in a Sinhala speaking Sri Lankan population: validation of the WHO-5 well-being index
title_short Assessing mental well-being in a Sinhala speaking Sri Lankan population: validation of the WHO-5 well-being index
title_sort assessing mental well being in a sinhala speaking sri lankan population validation of the who 5 well being index
topic WHO-5 Sinhala version
Validation
Well-being
Sri Lanka
url http://link.springer.com/article/10.1186/s12955-020-01532-8
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